CN105199133A - Large culture dish normal-pressure low-temperature plasma processing device and operating method thereof - Google Patents
Large culture dish normal-pressure low-temperature plasma processing device and operating method thereof Download PDFInfo
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- CN105199133A CN105199133A CN201510681849.4A CN201510681849A CN105199133A CN 105199133 A CN105199133 A CN 105199133A CN 201510681849 A CN201510681849 A CN 201510681849A CN 105199133 A CN105199133 A CN 105199133A
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Abstract
The invention discloses a large culture dish normal-pressure low-temperature plasma processing device. The large culture dish normal-pressure low-temperature plasma processing device comprises a cabinet body, and also comprises a low-temperature plasma power supply, a circuit power distribution cabinet, a stepper motor, a low-temperature plasma upper electrode, a low-temperature plasma lower electrode, a setting touch screen, a low-temperature plasma electrode base station and a cooling fan arranged in the cabinet body, and also comprises an air collection metal cover which is arranged on the rear part of the cabinet body, and a metal pipe, an exhaustion pipe and a fan are arranged in the air collection metal cover. The invention also discloses an operating method of the processing device. The large culture dish normal-pressure low-temperature plasma processing device is simple to operate, high in controllability and low in processing cost; the size and processing technology of the device can be flexibility adjusted according to the size and processing effect requirement of a test piece, the test piece can be processed in normal-pressure air, the processing cost is low, and the efficiency is high.
Description
Technical field
The invention discloses a kind of large culture dish atmospheric low-temperature plasma treatment unit and working method thereof, relate to pilot plasma equipment technical field.
Background technology
Plasma body is a kind of high-octane material aggregation state, the atom wherein containing a large amount of electronics, ion, excited state, molecule, photon and free radical isoreactivity particle.Utilize plasma body to material carry out process can cause the physical change of material surface (as etching, desorb, sputtering, inject, excite and ionization etc.) and chemical transformation (as oxidation, decompose, crosslinked, be polymerized and grafting etc.), to reach the object of change material surface characteristic (comprising wetting ability, hydrophobicity, binding property, flame retardant resistance, preservative property, static electricity resistance and biological fitness).The electron energy of low-temperature plasma is generally about several to dozens of electron-volts, higher than chemical bond energy common in polymkeric substance.Therefore, plasma body can have enough energy to cause the various chemical bonds in polymkeric substance that fracture or restructuring occur.Show macromolecular degraded, material surface and foreign gas, monomer react under action of plasma.In recent years, the application of plasma surface modification technology on Biomaterials Modification has become a study hotspot of plasma technique.Low-temperature plasma process is divided into plasma polymerization and plasma surface treatment.Plasma polymerization utilizes electric discharge the plasma of organic gaseous monomer, makes it produce all kinds of active substance, by between these active substances or active substance and monomer ask that carrying out addition reaction forms polymeric membrane.And plasma surface treatment utilizes the plasma body of non-polymerization inorganic gas (Ar2, N2, H2, O2 etc.) to carry out surface reaction, particular functional group is introduced on surface by surface reaction, produce surface erosion, form crosslinking structure layer or generate surface free radical, through plasma-activated surface free radical position, can react further and produce particular functional group, as hydroperoxide.Comparatively generally lead people's oxygen-containing functional group at polymer surface.As-OH ,-OOH etc.Somebody introduces amido at material surface.After material surface generates free radical or introducing functional group, just can react with other high polymer monomers and carry out grafting (namely the free radical that formed of material surface or functional group's trigger monomer molecule are had an effect with it) or be polymerized, or directly at material surface immobilizing biologically active molecule.Owing to there is ion and unbound electron, free radical in low-temperature plasma, which provide unexistent chemical reaction condition in conventional chemical reactor, the molecular breakdown in raw-gas can be made, many Orqanics Monomer can be made again to produce polyreaction.
Synthesized polymer material cannot meet the biological function requirement as the biocompatibility required for bio-medical material and height completely.For addressing these problems, surface modification of low temperature plasma technology is adopted to be widely used in bio-medical material with its distinctive advantage.After Cement Composite Treated by Plasma, at polymer surface immobilizing biologically active molecule, the object as bio-medical material can be reached.
In prior art, be difficult to obtain uniform (large-area) low-temperature plasma in atmospheric air, and in prior art culture dish surface treatment after wetting ability not enough, and production efficiency is low.
Summary of the invention
Technical problem to be solved by this invention is: for the defect of prior art, provides a kind of large culture dish atmospheric low-temperature plasma treatment unit and working method thereof, adopts the dielectric barrier discharging low-temperature plasma device of differential feed mode.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of large culture dish atmospheric low-temperature plasma treatment unit, comprise cabinet, also comprise be arranged at cabinet inside low-temperature plasma power supply, circuit distribution cabinet, stepper-motor, low-temperature plasma top electrode and lower electrode, touch-screen, low-temperature plasma electrode base station and cooling fan are set, also comprise the collection wind metal cap being arranged at cabinet rear portion, metal tube, vapor pipe and blower fan is provided with in described collection wind metal cap, wherein
Described lower electrode base station is made up of the metal basic mode configured and aluminum tooth block, and the shape of described metal basic mode and large culture dish adapts, and described aluminum tooth block is fixedly connected with metal basic mode, and described cooling fan is arranged at the below of metal basic mode;
Described low-temperature plasma top electrode is connected with stepper-motor;
The described touch-screen that arranges is connected with low-temperature plasma power supply, stepper-motor, cooling fan respectively, carries out human-computer interactive control;
Described low-temperature plasma electrical source, by low-temperature plasma top electrode and lower electrode, makes its region intermediate produce discharge of plasma in low temperature district;
In described collection wind metal cap, blower fan, to the outside exhausting of cabinet, is discharged the ozone of reaction generation in cabinet and carries out exterior cooling further by metal tube and vapor pipe to upper and lower electrode.
As present invention further optimization scheme, described low-temperature plasma power supply is difference excitation power supply.
As present invention further optimization scheme, the upper and lower electrode of described low-temperature plasma is pair of parallel plate electrode.
As present invention further optimization scheme, the upper and lower electrode of described low-temperature plasma is metal sheet or wire netting, and electrode surface covers ceramic dielectic or quartz medium.
The invention also discloses a kind of working method of large culture dish atmospheric low-temperature plasma treatment unit, concrete steps comprise:
Step one, shape according to large culture dish, the low-temperature plasma electrode base station that design is corresponding, is placed on large culture dish on electrode base station;
Step 2, unlatching low-temperature plasma power supply, arrange controling parameters by touch-screen;
Step 3, stepper-motor outputting power drive low-temperature plasma top electrode to move downward, until with large culture dish pressing;
Region between the upper and lower electrode of step 4, low-temperature plasma produces low-temperature plasma, processes large culture dish;
The ozone produced in step 5, step 4 and heat energy are discharged to outdoor through collection wind metal cap;
After step 6, process terminate, step motor control low-temperature plasma top electrode moves up to original point.
The present invention adopts above technical scheme compared with prior art, has following technique effect: the present invention is easy and simple to handle, controllability is strong, processing cost is low; Can according to the book size of process test specimen and treatment effect requirement, flexible setting device size and treatment process, and process in atmospheric air, processing cost is cheap, efficiency is high.
Accompanying drawing explanation
Fig. 1 is in the present invention, the three-dimensional arrangement frontview of large culture dish atmospheric pressure plasma jet treatment device;
Fig. 2 is in the present invention, the three-dimensional arrangement rear view of large culture dish atmospheric pressure plasma jet treatment device;
Wherein: 1, footing, 2, low-temperature plasma electrical source, 3, stepper-motor, 4, low-temperature plasma top electrode, 5, touch-screen is set, 6, low-temperature plasma electrode base station, 7, cooling fan, 8, circuit distribution cabinet, 9, collection wind metal cap.
Embodiment
Be described below in detail embodiments of the present invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
As shown in Figure 1 and Figure 2, described treatment unit comprises lower electrode base station part, Low Temperature Plasma Treating part, treatment zone cooling row's ozone part and low-temperature plasma generating portion to the perspective view of large culture dish atmospheric pressure plasma jet treatment device disclosed in this invention.
Described lower electrode base station part is made up of the metal basic mode configured and aluminum tooth block.(need process) large culture dish is by the reliable fixing metal basic mode of its specified shape, and aluminum tooth block is connected with metal basic mode reliably, and the heat that the fan of below can effectively produce when plasma treatment metal basic mode cools.
Described Low Temperature Plasma Treating part is primarily of lower electrode base station part and low-temperature plasma top electrode composition.When (needing process) large culture dish fixing metal basic mode reliably, low-temperature plasma top electrode is by the parameter motion at the uniform velocity of stepper-motor by setting, until be pressed together on large culture dish (not damaging large culture dish by pressure) stably, by low-temperature plasma electrical source by upper and lower electrode, make its region intermediate produce discharge of plasma in low temperature district.
Described low-temperature plasma produces and treatment system is made up of difference excitation power supply and pair of parallel plate electrode.Difference excitation power supply is the power supply of differential high voltage sinewave output, for providing dielectric barrier discharge energy, makes medium blocking discharge electrode produce low-temperature plasma.Discharge electrode is metal sheet or wire netting or other plane formula electro-conductive material, surface coverage one deck corundum ceramic medium or quartz medium.Difference excitation power supply output terminal is connected with two electrodes respectively.Two interelectrode gaps are that low-temperature plasma produces and treatment zone, the i.e. treatment zone of large culture dish.When two electrode gap institute making alives reach the sparking voltage of air between gap, atmospherical discharges produces low-temperature plasma.
Described treatment zone cooling row ozonation system is made up of electrode cooling system and row's ozonation system two portions.Electrode cooling system is made up of fan and electrode and forms, and causes the temperature of electrode to keep stable by fan.Row's ozonation system is made up of the metal tube at rear portion, vapor pipe and blower fan.By the outside exhausting of blower fan, namely can get rid of ozone, exterior cooling be carried out to electrode simultaneously.Cooling system can be guaranteed in discharge process, and the medium that electrode covers outward can not be in for a long time under high temperature and be out of shape, and causes the plasma nonuniformity that produces between electrode.
The working process of large culture dish atmospheric low-temperature plasma treatment unit is as follows:
Large culture dish being placed on electrode base station (can according to the shape of culture dish, be designed to different electrode base stations) on, open difference excitation power supply, by touch-screen, all kinds of parameter is set, comprise: treatment time, power, warning, movement velocity etc., motor driver Driving Stepping Motor (can processing speed be adjusted), the power wheel drive low-temperature plasma top electrode that stepper-motor exports moves downward, until with large culture dish pressing, low-temperature plasma top electrode moves downward stopping, and upper and lower low-temperature plasma electrode region produces low-temperature plasma.The process of the treatment time quilt that touch-screen is arranged pressed by large culture dish.The ozone simultaneously produced and heat energy are discharged to outdoor through collection wind metal cap and blower fan.Low-temperature plasma top electrode moves up to original point, is disposed.
By reference to the accompanying drawings embodiments of the present invention are explained in detail above, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can also makes a variety of changes under the prerequisite not departing from present inventive concept.The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solution of the present invention content, according to technical spirit of the present invention, within the spirit and principles in the present invention, to any simple amendment that above embodiment is done, equivalent replacement and improvement etc., within the protection domain all still belonging to technical solution of the present invention.
Claims (5)
1. a large culture dish atmospheric low-temperature plasma treatment unit, comprise cabinet, it is characterized in that: also comprise be arranged at cabinet inside low-temperature plasma power supply, circuit distribution cabinet, stepper-motor, low-temperature plasma top electrode and lower electrode, touch-screen, low-temperature plasma electrode base station and cooling fan are set, also comprise the collection wind metal cap being arranged at cabinet rear portion, metal tube, vapor pipe and blower fan is provided with in described collection wind metal cap, wherein
Described lower electrode base station is made up of the metal basic mode configured and aluminum tooth block, and the shape of described metal basic mode and large culture dish adapts, and described aluminum tooth block is fixedly connected with metal basic mode, and described cooling fan is arranged at the below of metal basic mode;
Described low-temperature plasma top electrode is connected with stepper-motor;
The described touch-screen that arranges is connected with low-temperature plasma power supply, stepper-motor, cooling fan respectively, carries out human-computer interactive control;
Described low-temperature plasma electrical source, by low-temperature plasma top electrode and lower electrode, makes its region intermediate produce discharge of plasma in low temperature district;
In described collection wind metal cap, blower fan, to the outside exhausting of cabinet, is discharged the ozone of reaction generation in cabinet and carries out exterior cooling further by metal tube and vapor pipe to upper and lower electrode.
2. a kind of large culture dish atmospheric low-temperature plasma treatment unit as claimed in claim 1, is characterized in that: described low-temperature plasma power supply is difference excitation power supply.
3. a kind of large culture dish atmospheric low-temperature plasma treatment unit as claimed in claim 1, is characterized in that: the upper and lower electrode of described low-temperature plasma is pair of parallel plate electrode.
4. a kind of large culture dish atmospheric low-temperature plasma treatment unit as claimed in claim 3, it is characterized in that: the upper and lower electrode of described low-temperature plasma is metal sheet or wire netting, and electrode surface covers ceramic dielectic or quartz medium.
5. a working method for large culture dish atmospheric low-temperature plasma treatment unit, it is characterized in that, concrete steps comprise:
Step one, shape according to large culture dish, the low-temperature plasma electrode base station that design is corresponding, is placed on large culture dish on electrode base station;
Step 2, unlatching low-temperature plasma power supply, arrange controling parameters by touch-screen;
Step 3, stepper-motor outputting power drive low-temperature plasma top electrode to move downward, until with large culture dish pressing;
Region between the upper and lower electrode of step 4, low-temperature plasma produces low-temperature plasma, processes large culture dish;
The ozone produced in step 5, step 4 and heat energy are discharged to outdoor through collection wind metal cap;
After step 6, process terminate, step motor control low-temperature plasma top electrode moves up to original point.
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Cited By (5)
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| CN106142532A (en) * | 2016-08-31 | 2016-11-23 | 南京苏曼等离子科技有限公司 | A kind of normal atmosphere low temperature plasma agricultural film processing equipment and operational approach thereof |
| CN106140764A (en) * | 2016-08-24 | 2016-11-23 | 南京苏曼等离子科技有限公司 | Normal atmosphere differential output drive low temperature plasma glass washing device |
| CN106182729A (en) * | 2016-08-31 | 2016-12-07 | 南京苏曼等离子科技有限公司 | Normal atmosphere jet lower temperature plasma technology caulking gum processing equipment and method |
| CN109874220A (en) * | 2017-12-01 | 2019-06-11 | 南京苏曼等离子科技有限公司 | A kind of metal cup atmospheric low-temperature plasma processing unit and application method |
| CN113192813A (en) * | 2021-05-27 | 2021-07-30 | 南京珀斯佩特电子科技有限公司 | Plasma device using mechanical arm |
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| US6159531A (en) * | 1999-08-30 | 2000-12-12 | Cardiovasc, Inc. | Coating having biological activity and medical implant having surface carrying the same and method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106140764A (en) * | 2016-08-24 | 2016-11-23 | 南京苏曼等离子科技有限公司 | Normal atmosphere differential output drive low temperature plasma glass washing device |
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| CN106182729B (en) * | 2016-08-31 | 2018-12-04 | 南京苏曼等离子科技有限公司 | Normal atmosphere jet stream lower temperature plasma technology seal rubber processing equipment and method |
| CN109874220A (en) * | 2017-12-01 | 2019-06-11 | 南京苏曼等离子科技有限公司 | A kind of metal cup atmospheric low-temperature plasma processing unit and application method |
| CN113192813A (en) * | 2021-05-27 | 2021-07-30 | 南京珀斯佩特电子科技有限公司 | Plasma device using mechanical arm |
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